Today the financial services sector has become highly diversified offering the investor with a wide range of investment avenues. For years, traditional finance has always presumed that investors are rational in their decision making process in the stock market about risk return trade-offs and maximizing utility. The individual investor plays an important role in the stock market because of the big share of their savings are invested in the stock market. The present study is an attempt to identify the awareness level among Bangalore investors regarding stock market, and to study and understand the role of demographic factors in investment pattern decision making. It is found that marital status, age play major role in investment decision making.